Tin Dioxide Semiconductor Gas Sensor for Hydrogen Detection - SB-19-00

• Target gas: Hydrogen
• Heater voltage: 0.9 V ± 5%
• Operating temperature: -10°C to 60°C
• Storage temperature: -20°C to 70°C
• Relative humidity: Less than 95% RH
• Sensor resistance: 0.2 kΩ to 2.0 kΩ
• Sensitivity: 0.6 to 1.2
• ​Industrial gas leak detector

  • Model Number: SB-19-00
  • Data Sheet: Date Sheet File
Quantity:
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  • Tin Dioxide Semiconductor Gas Sensor for Hydrogen Detection
  • Tin Dioxide Semiconductor Gas Sensor for Hydrogen Detection
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Product Specification

SB-19-00 Hydrogen Sensor H2 Sensor Description
The SB-19-00 is a tin dioxide semiconductor gas sensor which has an excellent sensitivity and selectivity to hydrogen.

Significant low power consumption design (120mW) is advantageous for portable gas detection devices.

SB-19-00 Hydrogen Sensor H2 Sensor Application
• Industrial gas leak detector

SB-19-00 Hydrogen Sensor H2 Sensor Specifications 

Standard Operating conditions
Symbol
Parameter
Specification
Conditions etc.
VH
Heater voltage
0.9 V ± 5%
AC, DC or pulse
VC Circuit voltage
Less than 5 V
DC: Pin2 (+) - Pin 1 (-)
RL Load resistance
Variable (> 200 Ω)
PS < 10 mW
RH Heater resistance
2.8 Ω ± 0.2 Ω
at room temperature
IH Heater current
130 mA
IH = VH/RH (typical value)
PH Heater power consumption
120 mW
PH = VH2/RH (typical value)
PS Power dissipation
of sensing element
Less than 10 mW
PS = (VC - VRL)2/RS
Environmental conditions
Symbol
Parameter
Specification
Conditions etc.
Tao
Operating temperature
-10°C to 60°C
Recommended range
Tas
Storage temperature
-20°C to 70°C
RH
Relative humidity
Less than 95% RH
(O2)
Oxygen concentration
21% ± 1%
(Standard condition)
Absolute minimum level:
more than 18%
The sensitivity characteristics are influenced by the variation 
in oxygen concentration. Please consult FIS for details.

Sensitivity characteristics
Model
SB-19-00
Symbol
Parameter
Specification
Conditions etc.
RS
Sensor resistance
0.2 kΩ to 2.0 kΩ
in hydrogen 100 ppm
β
Sensitivity
0.6 to 1.2
 log(Rs(1000 ppm)/Rs(100ppm))
log(1000/100)
Standard Test Conditions:
Temp: 20°C ± 2°C
Humidity:65% ± 5%
(in clean air)
VC : 5.0 V ± 1%   
VH : 0.9 V ± 1%   
RL : 750 kΩ ± 5%
Pre-heating time: more than 48 hours
Mechanical characteristics
Items
Conditions
Specifications
Vibration
Frequency:
Vertical amplitude:
Duration:
100 cpm
4 mm
1 hour
Should satisfy the specifications 
shown in the sensitivity 
characteristics after test.
Shock
Acceleration:
Number of impacts:
100 G
5 times

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